CVE-2026-82877: ILIAS before 9.22 Arbitrary File Read via SOAP addFile
ILIAS versions before 9.22, 10.0 through 10.9, and 11.0 through 11.2 contain an arbitrary file read vulnerability in the SOAP addFile method that allows authenticated users to read server files by supplying crafted XML with COPY-mode imports. Attackers can construct absolute file paths through an unsandboxed import directory and retrieve sensitive files including configuration files containing database credentials and setup passwords.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
ILIASto a version that resolves this vulnerability.Fixed in 9.22 - Upgrade
Upgrade
ILIASto a version that resolves this vulnerability.Fixed in 10.9 - Upgrade
Upgrade
ILIASto a version that resolves this vulnerability.Fixed in 11.2
Event History
Frequently Asked Questions
Which deployments are affected?
Affected releases are ILIAS versions before 9.22, 10.0 through 10.9, and 11.0 through 11.2. The issue is in the SOAP addFile method when processing COPY-mode imports.
What access does an attacker need?
An attacker must be authenticated with low privileges. They do not need user interaction and can exploit the issue remotely by submitting crafted XML.
What information could be exposed?
An attacker can read arbitrary server files by constructing absolute paths through the unsandboxed import directory. This can expose sensitive configuration files, including database credentials and setup passwords.
How can the issue be remediated?
Upgrade to a version outside the affected ranges: 9.22 or later in the 9.x line, 10.10 or later in the 10.x line, or 11.3 or later in the 11.x line.